Cannot change screen brightness on HP pavilion DV6

HI,
after changing from win 7 home basic to win7 ultimate 64bit cannot change screen brightnes with function keys
HP Pavilion dv6-3055sr
P/N: WY940EA
Please help.

Hello Roma89,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that since you upgrade from Windows 7 Home to Windows 7 Ultimate you have been unable to adjust the screen brightness using the Functions keys. I would suggest that you download and install the newest version of the HP Support Assistant which if you follow the HP Support document: Using HP Support Assistant (Windows 7) should get you all the newest drivers for your computer.
Please re-post if you have any further issues. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
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try change drivers
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Hi i cannot change the brightness on my late 2011 macbook pro.

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http://support.apple.com/kb/ht1379
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Hi,
How about go to Device Manager, then uninstall Graphic driver and restart your computer, system will install its build in graphic drver. You can have a try.
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HI,
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Current
cat /etc/X11/xorg.conf.d/10-synaptics.conf | grep -i model
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Actually my HP is dv6 and I see now that the keyboard is totally different:
DV5 http://images.google.com/imgres?q=hp+dv … 29,r:0,s:0
DV6 http://images.google.com/imgres?q=hp+dv … 29,r:1,s:0
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hpi6 Hewlett-Packard Internet Keyboard
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hpxe3gc Hewlett-Packard Omnibook XE3 GC
hpxe3gf Hewlett-Packard Omnibook XE3 GF
hpxt1000 Hewlett-Packard Omnibook XT1000
hpdv5 Hewlett-Packard Pavilion dv5
hpzt11xx Hewlett-Packard Pavilion ZT11xx
hp500fa Hewlett-Packard Omnibook 500 FA
hp5xx Hewlett-Packard Omnibook 5xx
hpnx9020 Hewlett-Packard nx9020
hp6000 Hewlett-Packard Omnibook 6000/6100
hpmini110 Hewlett-Packard Mini 110 Notebook
Last edited by r0b0t (2011-12-25 12:53:40)

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[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000]
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"FeatureTestControl"=dword:0000f048
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Cannot change screen brightness on HP pavilion DV6

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